offered to conversatinformation leading to his arrest. And former congresswoman gabrielle giffords stared down the gunman who shot her and a crowd of bystanders last year. More, now, from abc's ryan owens. Reporter: In front of a courtroom packed with other victim, gabby giffords stood silently, face-to-face with the man who came so close to killing her. Mr. Loughner, you may have put a bullet through her head. But you haven't put a dent in her spirit. He spoke to diane sawyer about it last night on "world news." She stared into his eyes the entire time. I saw a person who certainly has, you know, major mental illness. But also somebody who knew where he was and why he was there. Reporter: The last time congresswoman giffords saw jared loughner was almost two years ago. He shot her at point-blank range as she met with constituents. He killed six and injured a dozen moore. Pam simon was shot twice and almost died. I reall think he wishes someone had intervened. Reporter: Loughner is a schizophrenic, severely mentally ill. He never got help. Now, the 24-year-old finally is. Locked up in a psychiatric ward in a federal prison. Serving seven life sentences for one of the worst shootings in american history. For "good morning america," ryan owens, abc news, tucson,

This transcript has been automatically generated and may not be 100% accurate.

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